From Prompt to Prediction: Understanding Prefill, Decode, and the KV Cache in LLMs

Mar 31, 2026 - 00:51
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From Prompt to Prediction: Understanding Prefill, Decode, and the KV Cache in LLMs
This article is divided into three parts; they are: • How Attention Works During Prefill • The Decode Phase of LLM Inference • KV Cache: How to Make Decode More Efficient Consider the prompt: Today’s weather is so .

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